PS5 DualSense teardown reveals potential causes of controller drift

No easy fix.
Updated on 20 February 2021
A new PlayStation 5 DualSense teardown has revealed the potential causes of controller drift.
The YouTube video, below, from iFixit looks inside the DualSense to find out what is causing the drift that some users have reported.
According to iFixit, the DualSense as well as the DualShock 4, the Xbox One and Xbox One Elite controllers all use off the shelf joystick hardware "with a long history of predictable, preventable issues".
iFixit's investigation found the components in these sticks "could easily exceed their operating life in just over 400 hours of game time".
But what's causing drift in the first place? It appears to relate to wear to the potentiometers. A potentiometers is a three-terminal resistor with a sliding or rotating contact (rotating, in the DualSense's case) that forms an adjustable voltage divider to measure your position. Most modern game controllers have these under the hood.

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